HK1016660A1 - Method of manufacturing a bicrystal cluster magnetic recording medium - Google Patents

Method of manufacturing a bicrystal cluster magnetic recording medium

Info

Publication number
HK1016660A1
HK1016660A1 HK99101540A HK99101540A HK1016660A1 HK 1016660 A1 HK1016660 A1 HK 1016660A1 HK 99101540 A HK99101540 A HK 99101540A HK 99101540 A HK99101540 A HK 99101540A HK 1016660 A1 HK1016660 A1 HK 1016660A1
Authority
HK
Hong Kong
Prior art keywords
manufacturing
recording medium
magnetic recording
cluster magnetic
bicrystal cluster
Prior art date
Application number
HK99101540A
Inventor
Ga-Lane Chen
Qixu Chen
Original Assignee
Seagate Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seagate Technology filed Critical Seagate Technology
Publication of HK1016660A1 publication Critical patent/HK1016660A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
HK99101540A 1996-01-16 1999-04-13 Method of manufacturing a bicrystal cluster magnetic recording medium HK1016660A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/586,529 US5733370A (en) 1996-01-16 1996-01-16 Method of manufacturing a bicrystal cluster magnetic recording medium
PCT/US1996/020158 WO1997026391A1 (en) 1996-01-16 1996-12-23 Method of manufacturing a bicrystal cluster magnetic recording medium

Publications (1)

Publication Number Publication Date
HK1016660A1 true HK1016660A1 (en) 1999-11-05

Family

ID=24346120

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99101540A HK1016660A1 (en) 1996-01-16 1999-04-13 Method of manufacturing a bicrystal cluster magnetic recording medium

Country Status (8)

Country Link
US (1) US5733370A (en)
JP (1) JP3657273B2 (en)
KR (1) KR100362256B1 (en)
CN (1) CN1152160C (en)
DE (1) DE19681739T1 (en)
GB (1) GB2324099B (en)
HK (1) HK1016660A1 (en)
WO (1) WO1997026391A1 (en)

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US7116527B1 (en) * 1996-09-30 2006-10-03 Kabushiki Kaisha Toshiba Magnetoresistance effect device having hard magnetic film structural body
US6010795A (en) * 1997-02-26 2000-01-04 Seagate Technology, Inc. Magnetic recording medium comprising a nickel aluminum or iron aluminum underlayer and chromium containing intermediate layer each having (200) dominant crystalographic orientation
JP3699802B2 (en) * 1997-05-07 2005-09-28 株式会社東芝 Magnetoresistive head
JP3253556B2 (en) * 1997-05-07 2002-02-04 株式会社東芝 Magnetoresistive element, magnetic head and magnetic storage device using the same
US6110582A (en) * 1997-09-08 2000-08-29 Seagate Technology, Inc. Substantially two dimensional isotropic magnetic recording medium comprising a NiAl underlayer
US6120890A (en) * 1997-12-12 2000-09-19 Seagate Technology, Inc. Magnetic thin film medium comprising amorphous sealing layer for reduced lithium migration
WO1999045537A1 (en) * 1998-03-04 1999-09-10 Hitachi, Ltd. Magnetic recording medium, process for fabricating the same, and magnetic storage apparatus made by using the same
US6316097B1 (en) 1998-09-28 2001-11-13 Seagate Technology Llc Electroless plating process for alternative memory disk substrates
JP2000239827A (en) * 1998-12-22 2000-09-05 Bridgestone Corp Laminated structural body and its production
US6685990B1 (en) * 1999-04-20 2004-02-03 Seagate Technology Llc Nodule-free electroless nip plating
US6495252B1 (en) 1999-07-22 2002-12-17 Seagate Technology Llc Magnetic recording medium with superparamagnetic underlayer
US6699588B2 (en) * 1999-07-22 2004-03-02 Seagate Technology, Inc. Medium with a NiNb sealing layer
US6740397B1 (en) 2000-05-24 2004-05-25 Seagate Technology Llc Subseedlayers for magnetic recording media
KR20030001315A (en) 2001-06-25 2003-01-06 후지 샤신 필름 가부시기가이샤 Master carrier for magnetic transfer
JP4072324B2 (en) 2001-06-26 2008-04-09 株式会社日立グローバルストレージテクノロジーズ Magnetic recording medium and method for manufacturing the same
US6803119B2 (en) 2001-09-13 2004-10-12 Hitachi Global Storage Technologies Netherlands B.V. Oriented magnetic recording media on a nonmetallic substrate
US6670032B2 (en) 2001-09-13 2003-12-30 Hitachi Global Storage Technologies Netherlands B.V. Oriented magnetic medium on a nonmetallic substrate
JP2003099911A (en) 2001-09-26 2003-04-04 Fujitsu Ltd Magnetic recording medium and its manufacturing method
US6908689B1 (en) * 2001-12-20 2005-06-21 Seagate Technology Llc Ruthenium-aluminum underlayer for magnetic recording media
US6858331B1 (en) * 2003-08-29 2005-02-22 Hitachi Global Storage Technologies Netherlands, B.V. Magnetic thin film media with a bi-layer structure of CrTi/Nip
US7250358B2 (en) * 2004-08-06 2007-07-31 Globitech Incorporated Wafer for preventing the formation of silicon nodules and method for preventing the formation of silicon nodules
EP3140838B1 (en) 2014-05-05 2021-08-25 3D Glass Solutions, Inc. Inductive device in a photo-definable glass structure
US10070533B2 (en) 2015-09-30 2018-09-04 3D Glass Solutions, Inc. Photo-definable glass with integrated electronics and ground plane
AU2017223993B2 (en) 2016-02-25 2019-07-04 3D Glass Solutions, Inc. 3D capacitor and capacitor array fabricating photoactive substrates
US11161773B2 (en) 2016-04-08 2021-11-02 3D Glass Solutions, Inc. Methods of fabricating photosensitive substrates suitable for optical coupler
KR102420212B1 (en) 2017-04-28 2022-07-13 3디 글래스 솔루션즈 인코포레이티드 Rf circulator
AU2018297035B2 (en) 2017-07-07 2021-02-25 3D Glass Solutions, Inc. 2D and 3D RF lumped element devices for RF system in a package photoactive glass substrates
KR102614826B1 (en) 2017-12-15 2023-12-19 3디 글래스 솔루션즈 인코포레이티드 Coupled transmission line resonate rf filter
JP7226832B2 (en) 2018-01-04 2023-02-21 スリーディー グラス ソリューションズ，インク Impedance-matching conductive structures for high-efficiency RF circuits
WO2019199470A1 (en) 2018-04-10 2019-10-17 3D Glass Solutions, Inc. Rf integrated power condition capacitor
KR102475010B1 (en) 2018-05-29 2022-12-07 3디 글래스 솔루션즈 인코포레이티드 Low insertion loss rf transmission line
EP3841623A1 (en) 2018-08-23 2021-06-30 Everspin Technologies, Inc. Magnetoresistive stack device fabrication methods
US11139582B2 (en) 2018-09-17 2021-10-05 3D Glass Solutions, Inc. High efficiency compact slotted antenna with a ground plane
WO2020139951A1 (en) 2018-12-28 2020-07-02 3D Glass Solutions, Inc. Heterogenous integration for rf, microwave and mm wave systems in photoactive glass substrates
US11270843B2 (en) 2018-12-28 2022-03-08 3D Glass Solutions, Inc. Annular capacitor RF, microwave and MM wave systems
KR20210147040A (en) 2019-04-05 2021-12-06 3디 글래스 솔루션즈 인코포레이티드 Glass-Based Blank Substrate Integrated Waveguide Device
WO2020214788A1 (en) 2019-04-18 2020-10-22 3D Glass Solutions, Inc. High efficiency die dicing and release
KR20220164800A (en) 2020-04-17 2022-12-13 3디 글래스 솔루션즈 인코포레이티드 broadband inductor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726464A1 (en) * 1987-08-08 1989-02-16 Basf Ag METHOD FOR PRODUCING MAGNETIC RECORDING CARRIERS
US5413873A (en) * 1991-04-26 1995-05-09 Victor Company Of Japan, Ltd. Magnetic recording medium having a glass or amorphous carbon substrate, vanadium or molybdenum precoat layer, chromium primer layer and cobalt magnetic layer
US5302434A (en) * 1992-08-07 1994-04-12 International Business Machines Corporation Magnetic recording disk for contact recording
US5273834A (en) * 1993-01-25 1993-12-28 Corning Incorporated Discs for memory storage devices

Also Published As

Publication number Publication date
GB2324099A (en) 1998-10-14
CN1207778A (en) 1999-02-10
DE19681739T1 (en) 2000-03-30
CN1152160C (en) 2004-06-02
GB2324099B (en) 1999-08-04
KR100362256B1 (en) 2003-02-20
WO1997026391A1 (en) 1997-07-24
US5733370A (en) 1998-03-31
JP2000503448A (en) 2000-03-21
GB9815152D0 (en) 1998-09-09
KR19990077289A (en) 1999-10-25
JP3657273B2 (en) 2005-06-08

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20041223